Oil deaeration device



FIG. 1 is a top, front and side perspective view of an oil deaeration device showing my new design;

FIG. 2 is a bottom and side perspective view thereof;

FIG. 3 is a view similar to FIG. 2 but with the device rotated clockwise as seen from above; and,

FIG. 4 is a view similar to FIG. 1 but with the device rotated counterclockwise as seen from above. 

The ornamental design for an oil deaeration device, as shown and described. 